Can-soldering machine



(No Model.) V

' r '5 sheets sheet 1. w E. E. ANGBLL.

CAN SO-LDERING MACHINE.

' Patented Oct. 8, 1889.

\A/ITNESSESI': v INVENTU a:

W T I 7 fi N. PETERS. Photo-Lithographer. Wilhl'nllnn, 11C.

(No Model!) 5' Sheets-Sheet 2.

v E ANGELL.

CAN SOLDERINGr MAQHINE v No. 412,582. Patented Oct. 8, 1889.

\A/ITN'ES'SEISHV v (No Model.) '5 Shetm-Sheet 4.

E. E. A-NGBLL.

- GAN SOLDERING MACHINE. No. 412,582. Patented Oct. 8, 1889.

\A/IT NESSES INVENTEIR;

WM W h mmg N. PEYERs Plww-Lilho m her, Walhinglan. QC.

v '5 Sheets-Sheet 5.. E. E. ANGELL.

CAN SOLDBRIYNGY MAGHINB.

Patented 001;. 8, 1889.

i UNITED STATES PATENT OFFICE.

EDWIN E. ANGELL, OF BOSTON, ASSIGNOR OF ONE-HALF TO E. B. WELOH,

OF CAMBRIDGE, MASSACHUSETTS.

CAN-SOLD ERIN G MACHINE.

SPECIFICATION forming part of Letters Patent No. 412,582, dated October8, 1889.

- Application filed January 29,1889. Serial No. 293,008. (No model.)

To an whom it may concern:

Be it known that I, EDWIN E. ANGELL, of Boston, in the county of Sufiolkand State of Massachusetts, have invented certain new and usefulImprovements in Can-Soldering Machines, of which the following is aspecification.

This invention has for its object to provide a simple andrapidly-operating machine for soldering can-bodies, and in which theoperations of applying the can-body blanks to the machine, soldering theseams thereof, and removing the soldered can-bodies shall beautomatically performed.

The invention consists in the improvements which I shall now proceed todescribe and claim.

Of the accompanying drawings, forming a part of thisspecificatiom'Figures 1 and 2 represent side elevations of my improvedmachine. Fig. 3 represents a top view of the same. Fig. 4 representsasection on line 0000, Fig. 3. Fig. 5 represents a section on line y y,Fig. 4, and a top View of the mechanism below said line.

The same letters of reference indicate the same parts in all thefigures.

In the drawings, 0t represent'sw'a rotary carrier or turret having a hub2 connected with the turret by spokes or arms 3. The hub of the turretis fitted to rotate on a vertical shaft b, and is supported by a bearing0,

in which said shaft is journaled, thelower end of the hub resting onsaid bearing, as shown in Fig. 4. The turret and shaft are capable ofrotating independently of each other, the shaft serving both as a centeron which the turret may rotate and as a means for reciprocating thesoldering-arms, as hereinafter described. The upper end of the hub isformed as a journal and fitted in a fixed bearing 01.

porting-frame of the machine. The turret is provided with a series ofradiating mandrels 6, each of which is composed of sections connected byflexible arms or spring f f, Fig. 4, with the turret, said flexible armspermitting the mandrel-sections to move from and toward each other forthe purpose of expanding and The bearings c d are parts of the sup-.

contractingthemandrel. Withinthe mandrels are a series of conical wedgesg, which are formed on radiating rods h, fitted to slide'in guides i t'on the turret. Said rods are provided within the turret with sleeves or001- lars j, which are provided with trundle-rolls k projecting into agroove in a fixed cam m. These expanding mandrels are claimed in myapplication, Serial No. 298,007, filed simultaneously herewith.

The turret is rotated step by step in the direction indicated by thearrow in Fig. 3 by the devices which I will now describe.

n represents a flanged Wheel affixed to the hub 2, and having in theupper edge of its flange a series of notches 0 corresponding in numberand position to the mandrels. On the hub is fitted acollar p, on whichis formed a, lever q', said lever and its collar being adapted tooscillate horizontally. The outer end of the lever projects into a slotin the upper end of a lever r, the lower end of which is pivoted at s toan ear or bracket on the supporting-frame. Said lever r has atrundle-roll, which enters a cam-groove t in a disk u, on thedriving-shaft o. The rotation of said-disk oscillates the lever r,

which in turn oscillates the horizontal lever I q. To the lever q ispivoted, at w, a dog a, which is formed to engage the notches o in thewheel n. The outer end of said dog is pivoted to a vertical rod 19', thelower end of which is pivoted to one end of a lever c, p which ispivoted at cl to the supporting-frame and has a trundle-roll 6 bearingon the peripheryof a cam f on the driving-shaft. A

spring g holds said roll on the cam and pulls downwardly on the dog. Therotation of the cam f and the force of the spring g oscillate the dogvertically, as will be readily seen. The horizontal movements thus givento the lever q and the vertical movements given to the dog a are sotimed that when the dog is depressed and engaged with a notch in thewheel at the lever q is moved horizontally in the direction required torotate the turret one step in the direction indicated by the arrow, Fig.3. The dog is then raised by the cam f and held raised while the lever qmoves in the opposite direction, after which the dog is depressed andengaged with the next notch 0, and so on, each partial rotation of theturret being sufiicient to present a new mandrel to the horn hereinafterdescribed. The turret is locked after each movement by a lever h, havinga tooth formed to enter slots t" formed in the lower edge of the flangeof the wheel 11. Said lever is thrown into engagement with one of saidslots z",when the turret stops, by a spring j, and is withdrawn justbefore the next rotation of the turret by a cam is on the driving-shaftbearing against a roll on said lever, the latter being pivoted at m tothe supporting-frame.

The cam on is composed of two concentric circular portions 4 5, havingdifferent radii, and two cam-shaped portions 6 7, connecting saidconcentric portions. When the rotation of the turret brings a rod h tothe camshaped portion 6, said rod and the Wedge thereon are movedinwardly andthe mandrel on said wedge is expanded, thus clamping thecan-body blank thereon against jaws 0 0' 0' attached to the turret. Thejaws of one of the mandrels are shown in Fig. 1; but the jaws of theother mandrels are omitted from said figure and from Figs. 2 and 3, toavoid unnecessary repetition of detail, said jaws being fully shown inanother application filed by me. The concentric circular portion 4 ofthe cam holds the wedges in their mandrel-expanding position during apart of the rotation of the turret and while the solderingirons areoperating on the can-blanks, as hereinafter described. When the rods hreach the cam-shaped portion 6, they are thrown out thereby into theconcentric circular portion 5. The wedge are thus caused to release themandrel-sections, so that they no longer clamp the can-bodies thereon,the wedges being held in said position while the soldered can-bodies arebeing removed from the mandrels and while unsoldered blanks are beingplaced thereon.

The machine is provided with a horn 1), which is afiiXed at one end to afixed arm or bracket g on the frame of the machine, and is arranged sothat each mandrel is brought successively into line with it. Thecan-blanks, which have been previously bent into scrolls with theiredges overlapping, are placed on the horn by the operator and are forcedfrom the horn onto the. mandrel coinciding therewith by jaws 1', whichare pivoted to a reciprocating carrier 3 within the horn, and are forcedoutwardly by springs, their outer ends projecting through longitudinalslots in the horn. The carrier 3 is reciprocated by mechanismhereinafter described, and each movement toward the outer end of thehorn causes the jaws to force the canblank from thehorn to the mandrel.Aguide 8', supported by an overhanging arm t, stands over the horn andconstitutes an abutment against which the overlapping edge of thecan-body blank is caused to bear by the operator. The can-blank isguided during its removal from the horn by said abutment or guide, sothat when the blank is placed upon the mandrel its overlapping edge isin the proper position with relation to the soldering devices to bedescribed. The jaw-carrier s is attached to a rod a, which slides inguides or bearings in the horn and has an arm 1) attached to it. rod towith a lever 8, which is pivoted at 9 to the supporting-frame and has atrundleroll which entersa cam-groove 10 in.a disk 12 on thedriving-shaft. The rotation of said disk oscillates the lever 8, whichin turn reciprocates the rod a and j aw-carriers through theconnecting-rod w. The movements of the jaw-carrier are so timed withrelation to those of the turret that the blank is forced from the hornwhile the turret is stationary.

The horn and its jaws and the guide .9 are described and claimed inanother application for patent filed by me simultaneously herewith,Serial No. 298,006, to which reference may be had for a fullerdescription.

13 13 represent two soldering irons or slugs, which are arranged to actsimultaneously on can-blanks supported by two adjacent mandrels. Saidirons are held in sliding carriers or boxes 14, which have rods 15 ontheir ends fitted to slide in ears or guides on a yoke or frame 16. Tothe outer end of said yoke is attached a vertical rod 17, which isfitted to slide in fixed guides on the supporting-frame and has a rollor stud 18, which bears on the free end of a lever 19, the other end ofwhich is pivoted to an, car on the supporting-frame. Said lever 19 isprovided between its ends with a trundle-roll, which enters a cam-groove20 in a disk 21 affixed to the driving-shaft. The rotation of said diskcauses its camgroove to oscillate the lever 19, which in turnreciprocates the rod 17, and thus alternately raises and lowers the yoke10, and the soldering-irons supported thereby, the said irons beingalternately applied to and raised from the can-blanks on the mandrelsunder the irons. These movements are so timed that the irons are raisedwhile the turret is being rotated, and are lowered and held upon theblanks after the turret stops and until it is again rotated. Theiron-holders 16 are continuously reciprocated horizontally to give theirons a lengthwise-rubbing motion. The means whereby the irons arereciprocated are a cross-head 22, connected with the upper rods 15 onthe inner ends of the iron-holders, arod 23, affixed to the cross-headand fitted to slide in bearings on the yoke or frame 16, a pitnian 24,connected by a gimbal-joint 25 with the outer end of said rod, and awrist-pin 26, connecting said pitman with adisk 27, affixed to the upperend of the shaft 1), said wrist-pin being eccentrically connected withthe disk Said arm is connected by a 27, so as to impart through thepitman a re ciprocating movement to the rod 23, cross head 22, andholders 14. The shaft 1) is continuously rotated by a connection withthe driving-shaft, said connection being a bevelpinion 28 on theshaft 1) and a bevel-gear 29 meshing therewith on the driving shaft '0.The irons are placed loosely in vertical slots in the holders 16, andare provided with shoulders or projections 30 above said holders, whichprojections bear on the upper edges of the holders when the latter areraised, and thereby enable the holders to raise the irons. When theholders are depressed, the projections are prevented from bearing on theholders by the contact of the irons with the canblanks. There istherefore no positive connection between the holders and the irons,

the latter being entirely independent of the holders so far as theirpressure on the canblanks is concerned, so that they can conform tovariations in the thickness of the metal of difierent blanks and bearupon the blanks with a pressure due only to their own weight.

The soldered blank or body is removed from each mandrel after the latterhas been released or allowed to contract by the outward movement of itswedge, the means for removing said bodies being as follows: 31,.

Fig. 4, represents a bell-crank lever pivoted at 32 to thesupporting-frame, and having a dog 33 pivoted to one of its arms, saiddog standing in position to project over the mandrel last released orloosened, when the turret stops, and provided with a hook formed toengage the inner end of the can-body on said mandrel. The other arm ofthe lever 31 is connected by a rod 34 with a lever 35, which is pivotedat 36 to a standard 37 on the supporting-frame, and has a trundle-roll38, Fig. 4, projecting into a cam-groove 39 in one side of a disk 40 onthe driving-shaft. The bellcrank lever is oscillated by said devices,and gives the dog a reciprocating motion lengthwise of the mandrel overwhich it projects. The rear end of the dog 33 is connected by a rod 41with one arm of a lever 42, which is pivoted at 32, and is connected bya rod 43 with a lever 44, pivoted beside the lever 35, and provided witha trundle-roll 45, entering a cam-groove 46 in the opposite side of thedisk-40. The lever 44 is oscillated by its described connection with thecam-groove 46, and through the rod 43 alternately raises and lowers the,dog 33, the time being such that the dog is raised when moving forwardafter the can-body, depressed to engage the inner end of the can-body atthe end of its forward movement, and kept in engagement with thecan-body until the end of its backward movement, when it is againraised.

To enable the dog to adjust itself to the difierent thicknesses of metalof different can-bodies, I provide the rod 41 with a sliding collar 47,which is engaged with the lever 42, and interpose springs 48 betweensaid collar and collars 49, which are affixed to the rod 41. (See Fig.4.)

The soldering devices herein described form the subject of anotherapplication for Letters Patent filed by me simultaneously herewith,Serial No. 298,009.

I claim-- 1. The combination, with the step-bysteprotated turret and itsmandrels and jaws, of the continuously-rotated shaft within the hub ofthe turret, the yoke or frame located over the turret, thesoldering-iron holders fitted to slide in guides in said frame andprovided with irons or slugs, and the pitman connected at one end withan eccentric wrist-pin on said shaft, and intermediate devices,substantially as described, connecting said pitman with theiron-holders, whereby the latter are reciprocated, as set forth.

2. The combination of the rotary mandrelcarrying turret having a hubjournaled in suitable bearings, a wheel n, affixed to said hub andhaving a series of notches or slots 0, an arm q, mounted to oscillatehorizontally on said hub, means for oscillating said arm, the dog a,pivoted to said arm and formed to engage the slots of the wheel n, andmeans for vertically reciprocating said dog, whereby the latter iscaused to engage the wheel n and rotate the turret during the forwardhorizontal movement of the arm g and disengaged from the wheel duringthe backward movement of said arm, as set forth.

3. The combination, with the rotary mandrel-carrying turret having a hubjournaled in suitable bearings, of the wheel a, rigid with said hub andprovided with the slots or notches 0 and i, the oscillating arm q,provided with the pivoted dog a, adapted to engage the slots or notcheso, the spring-pressed locking-lever h, arranged to engage the said slotsor notches t", and a cam for disengaging said lever from said slots ornotches, as set forth.

4. Thecornbination of the rotary turret and its mandrels and jaws, meansfor rotating said turret step by step, the ejecting or can-bodyremovingdog to which the mandrels are suc cessively presented, the lever 31,supporting said dog, means for oscillating said lever to give the dog alongitudinal motion, a pivoted lever 42, connected by a rod 41 to oneend of the dog, 33, and means for oscillating the lever 42, whereby saiddog is raised and lowered, as set forth.

5. The combination, with the intermittingly-rotatin g turret and itsmandrels, of the canremoving dog 33, the levers 31 and 42, means foroperating said levers, and the rod 41, having the collars 47 and 49 andsprings 48, as set forth.

6. The combination, with the intermittingly-rotated turret and itsmandrels, of the continuously-rotated shaft within the hub of theturret, an eccentric Wrist-pin carried by said to this specification, inthe presence of two shaft, the yoke or frame located over thetursubscribing witnesses, this 22d day of J anu- 1o ret, thesoldering-iron holders fitted to slide ary, A. D. 1889.

in guides in said frame, a jointed rod conneeting said holders with saidWrist-pin, and

means for lifting said holders when the tur- Witnesses:

ret is to be rotated, as set forth. 0. F. BROWN,

In testimony whereof I have signed my name A. D. HARRISON.

EDWIN E. ANGELL.

